11-10 Pelvis Flashcards
Locate these 5 parts of the iLium
- iliac fossa
- iliac crest
- ANT SUP iliac spine
- ANT inf iliac spine
- POST SUP iliac spine
- POST inf iliac spine
Locate these 4 parts of the Ischium
- Ischial tuberosity
- lesser sciatic notch
- ischiadic spine
- Greatr sciatic notch
Locate these 7 components of the PUBIS
1) SUP ramus
2) inf ramus
3) Body
4) Pubic crest
5) Pubic tubercle
6) pectineal line
7) Obturator foramen ; Obturator membrane
Pelvis MAJor vs. pelvis minor
pelvis minor= “true” pelvis——->inferior to superior pelvic aperture. Contains Pelvic viscera
A: What are the contents of the Pelvis? [3]
B: What are the important Ligaments of the Pelvis? Describe what they articulate [4]
A: ºRectum
ºBladder
ºFemale Uterus/Vagina OR male prostate gland
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B: PELVIC LIGAMENTS
-Pubic Symphysis= Joins 2 pubic bones
- Sacroiliac Ligament= From sacrum to iliac crest—-> LIGAMENT STRAINED WITH MANY GYMNAST
- Sacrotuberous Ligament= sacrum to [ischial tuberosity]
- Sacrospinous Ligament = sacrum to [ischial spine]
What are the Muscles of the Pelvis A: Lateral Wall B: Back Wall [3] C: Floor D: What is the Urogenital Diaphragm?
PELVIC MUSCLES
A: Lateral Wall= Obturator Internus M.
ºlateral thigh rotator
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B: Back Wall= Piriformis M.
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C: Floor = Pelvic Diaphragm
Contains [Levator Ani m. and Coccygeus m. ]
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D. special= Urogenital Diaphragm
º fibers inferior to Pelvic Diaphragm oriented perpendicularly directed toward [pubococcygeus m.]
ºprovides solid support for pelvic Viscera
Pelvic Diaphragm muscle acts as _____ of the Pelvic Cavity and is made of 3 important components.
What are they?
Internal (vs. EXTernal) Iliac artery supplies Blood to ______. What daughter arteries are included in its…
A: Anterior Divison [7]
B: Posterior MUSCULAR Division [3]
C: Internal and EXTernal Iliac artery both come from ____ ____ artery when divides at ___ vertebrae. This Parent artery originates from the ____ _____
Internal Iliac artery supplies blood to PELVIS
–Daughter arteries include….
A: Anterior Divison
- Obliterated Umbilical a.
- SUP Vesicle A. (Feeds Upper bladder)
- inf Vesicle A. (normally feeds lower bladder) [CAN BE SWITCHED OUT IN FEMALES FOR UTERINE ARTERY]
- Obturator a.
- Middle Rectal a.
- inf Gluteal a. [found UNDER Piriformis m.]
- ## *INTERNAL PUDENDAL a. * [goes to perineum after going around sacrospinous ligament]B: Posterior MUSCULAR Divison
- SUP GLUTEAL {biggest artery}
- Lateral sacral a.
- ## Iliolumbar a.Internal and EXTernal Iliac artery both come from COMMON ILIAC ARTERY when it divides at L4.
**COMMON ILIAC ARTERY stems from Grandparent artery DESCENDING AORTA!
SACRAL PLEXUS (L4-___) rest on the ____ muscle and gives several branches to the Pelvis & ____.
A: List imp nerves in its ANT division [4]
B: List IMP nerves in its POST Division [5]
C: What is significance of the PUDENDAL NERVE
D: What are the root contributions for the Sciatic Nerve? Which of these make up the [Lumbosacral trunk]?
SACRAL PLEXUS (L4-S5) rest on PIRIFORMIS muscle & gives several branches to Pelvis & PERINEUM.
C: ANT division of SACRAL PLEXUS
a) tibial SCIATIC n.
b) n. to obturator internus
c) PUDENDAL NERVE
d) medial>POST femoral cutaneous n.
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D: POST Divison of SACRAL PLEXUS
A-SUP/inf gluteal n. [wraps around Piriformis m.]
B- lateral>POST femoral cutaneous n.
C- Piriformis n.
D- [perforating cutaneous n. S2/S3]
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E: PUDENDAL NERVE S2,3,4 KEEPS YO JUNK OFF THE FLOOR = Parasympathetic
F: Sciatic Nerve = [L4-L5] + [S1-S3]
[L4-L5]—>Lumbosacral trunk
Sympathetic Trunks of the SACRAL PLEXUS descend from _____ along the ____ and converge to form the ___ _____
2) What nerves are responsible for Sympathetic Sacral innervation?
Sympathetic Trunks of SACRAL PLEXUS descend from ABDOMEN along SACRUM & coverage to form the GANGLION IMPAR
2) Sacral Splanchnics
How does the Pelvis receive Autonomic PARAsympathetic innervation?
PELVIC SPLANCHNICS S2-4 combine with sympathetic [SUP Hypogastric Plexus]–>form [inf Hypogastric Plexus] on pelvis wall = PARAsympathetic
A: Describe Rectum orientation with colon and anus
B: What is the Rectal Ampulla
B2: What is the [Rectouterine pouch of Douglas]
C: what are the 3 Rectal Blood Supply arteries , THEIR PARENTS and section perfused for Rectum [3]
A: ºRectum is continuous structurally with colon and technically called rectum when mesentery is lost.
B: Rectal Ampulla= terminal dilated prt of rectum tht contains [Rectovesical pouch] & [Rectouterine pouch]
C:
1. SUP Rectal branch of [inf. Mesenteric a.]= upper 2/3
- Middle Rectal a. of [ INTERNAL ILIAC a.]= lower 1/3 Muscle layer
- Inferior Rectal a. of [INTERNAL PUDENDAL a.]=anastomoses w/[SUP rectal branch] in anal columns
B: What about Nerve Supply for Rectum??
A:
*Internal Rectal Plexus= just deep to epithelium and drains [SUP Rectal V. ]
vs.
**EXTernal Rectal Plexus= outside muscular wall and has SUP part drain [SUP Rectal V.] but inferior prt drains [INTERNAL PUDENDAL V.]
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B: Rectal nerve supply:
ºSympathetics= [Hypogastric plexus] directly and fibers accompanying [SUP Rectal a.]
ººPARASympathetic= from Pelvic Splanchnics S2,3,4
The BLADDER wall contains a ____ Muscle which is made of ______.
B: List Bladder ligaments , where they extend from and what they’re made of
C: What is the Blood supply for Bladder
D: Nerve supply for Bladder
E: What 2 structures are found INSIDE Bladder
BLADDER wall contains DETRUSOR Muscle made of circular & inner longitudinal muscle layers.
B: male = [puboprostatic ligament]
feMale= [puboVesical ligament]
**Both extend from [levator ani and pubic bone] —->Bladder
**Both made of condensed subserous fascia
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C: Bladder Blood Supply=
1. [SUP/inf vesical arteries]
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D: Bladder NERVE Supply=
1. Sympathetic from Pelvic Plexus
- ## PARAsympathetics from Pelvic Splanchnics=motor to detrusor m.E: [trigone] and [interureteric folds] are found interiorly
A:
ºfeMale URETHRA is ____[short/LONG] & runs from ___ _____ to _______.
ºMALE URETHRA is divided into __ sections. What are they?
B: What is the nerve innervation for the URETHRA?
D: The PROSTATE lies between the ____ and ____ ____. It is perforated by the _____
A:
ºfeMale URETHRA is SHORT and runs from BLADDER NECK—->VAGINAL VESTIBULE end point
ºMALE URETHRA = divided into 3 sections
1. (4 prt) Prostatic urethra
2. membranous urethra
3. spongy urethra
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B: URETHRA innervation= Autonomic PARAsympathetic: Pelvic Splanchnics
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D: PROSTATE lies between BLADDER and PELVIC FLOOR. It is PERFORATED by URETHRA
